/* ===== RESET & BASE ===== */
*, *::before, *::after {
  margin: 0; padding: 0; box-sizing: border-box;
}

:root {
  --purple-deep: #150532;
  --purple-dark: #150538;
  --purple-mid: #2d1b69;
  --purple-main: #7c3aed;
  --purple-light: #a78bfa;
  --purple-glow: #c084fc;
  --white: #ffffff;
  --white-soft: #f0eaff;
  --text-muted: #a5a0c0;
  --card-bg: rgba(30, 15, 70, 0.6);
  --card-border: rgba(124, 58, 237, 0.3);
  --gold: #fbbf24;
  --gold-glow: #f59e0b;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--purple-deep);
  color: var(--white);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ===== BACKGROUND CANVAS ===== */
#bg-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 100px 20px 60px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -50%; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(124,58,237,0.35) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: pulse-glow 4s ease-in-out infinite alternate;
}

@keyframes pulse-glow {
  from { opacity: 0.5; transform: translateX(-50%) scale(1); }
  to   { opacity: 1;   transform: translateX(-50%) scale(1.15); }
}

.hero-icon {
  font-size: 64px;
  display: inline-block;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  letter-spacing: -2px;
  background: linear-gradient(135deg, var(--white) 0%, var(--purple-glow) 50%, var(--white) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

.hero-sub {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-top: 12px;
  font-weight: 300;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.stat-box {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 20px 32px;
  backdrop-filter: blur(12px);
  min-width: 160px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.stat-box:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(124,58,237,0.4);
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--white);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== FILTERS ===== */
.filters {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 16px 20px;
  background: rgba(13, 2, 33, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  flex-wrap: wrap;
}

.filter-btn {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid rgba(124,58,237,0.25);
  border-radius: 24px;
  padding: 8px 20px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  font-family: inherit;
}

.filter-btn:hover {
  color: var(--white);
  border-color: var(--purple-main);
  background: rgba(124,58,237,0.15);
}

.filter-btn.active {
  background: var(--purple-main);
  color: var(--white);
  border-color: var(--purple-main);
  box-shadow: 0 0 20px rgba(124,58,237,0.5);
}

/* ===== SECTIONS ===== */
.section {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 60px 24px;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 8px;
}

.section-desc {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 40px;
  font-size: 1rem;
}

.crown {
  font-size: 1.6rem;
  vertical-align: middle;
}

/* ===== TOP 3 ===== */
.top3-grid {
  display: grid;
  grid-template-columns: 300px 250px 200px;
  grid-template-rows: 320px 250px 200px;
  gap: 28px;
  margin-top: 20px;
}

.top3-card {
  background: linear-gradient(145deg, rgba(30,15,70,0.8), rgba(50,25,100,0.6));
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.top3-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--purple-main), var(--purple-glow), var(--white));
}

.top3-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 48px rgba(124,58,237,0.5);
}

.top3-card.rank-1 {
  border-color: var(--gold);
  box-shadow: 0 0 30px rgba(251,191,36,0.15);
}

.top3-card.rank-1::before {
  background: linear-gradient(90deg, var(--gold), var(--white), var(--gold));
}

.rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: 900;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--purple-mid), var(--purple-main));
  color: var(--white);
}

.rank-1 .rank-badge {
  background: linear-gradient(135deg, #b8860b, var(--gold), #f59e0b);
  color: var(--purple-deep);
  box-shadow: 0 0 24px rgba(251,191,36,0.4);
}

.top3-card h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.top3-card .company-tag {
  display: inline-block;
  background: rgba(124,58,237,0.25);
  color: var(--purple-light);
  padding: 3px 12px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.top3-card .params-big {
  font-size: 2.8rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--white), var(--purple-glow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.top3-card .params-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.top3-card .model-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.top3-card .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.mini-tag {
  background: rgba(124,58,237,0.2);
  color: var(--purple-light);
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* ===== SORT BAR ===== */
.sort-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 32px;
}

.sort-bar label {
  color: var(--text-muted);
  font-weight: 500;
}

.sort-bar select {
  background: var(--purple-dark);
  color: var(--white);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 8px 16px;
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}

/* ===== MODELS GRID ===== */
.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.model-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 24px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  cursor: default;
}

.model-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 50% 0%, rgba(124,58,237,0.12) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.model-card:hover {
  transform: translateY(-4px);
  border-color: var(--purple-main);
  box-shadow: 0 8px 32px rgba(124,58,237,0.3);
}

.model-card:hover::after {
  opacity: 1;
}

.model-card .card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.model-card .company-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  flex-shrink: 0;
}

.company-openai  { background: linear-gradient(135deg, #10a37f, #0a7d5e); }
.company-anthropic { background: linear-gradient(135deg, #d4a574, #b8860b); }
.company-google  { background: linear-gradient(135deg, #4285f4, #34a853); }
.company-meta    { background: linear-gradient(135deg, #1877f2, #0d5cbf); }
.company-deepseek { background: linear-gradient(135deg, #5b6ef5, #3b4ed5); }
.company-xai     { background: linear-gradient(135deg, #1da1f2, #0d8ecf); }
.company-mistral { background: linear-gradient(135deg, #f77f00, #d96e00); }
.company-alibaba { background: linear-gradient(135deg, #ff6a00, #e65100); }
.company-other   { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }

.model-card .model-name {
  font-size: 1.1rem;
  font-weight: 700;
}

.model-card .model-company {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.model-card .params-section {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 14px;
}

.model-card .params-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--purple-glow);
}

.model-card .params-unit {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.params-bar-wrap {
  width: 100%;
  height: 6px;
  background: rgba(124,58,237,0.15);
  border-radius: 3px;
  margin-bottom: 14px;
  overflow: hidden;
}

.params-bar {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--purple-main), var(--purple-glow));
  transition: width 0.8s ease;
}

.model-card .model-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.meta-tag {
  background: rgba(124,58,237,0.15);
  color: var(--purple-light);
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 500;
}

.meta-tag.type-text   { background: rgba(96,165,250,0.15); color: #93c5fd; }
.meta-tag.type-image  { background: rgba(251,191,36,0.15); color: #fcd34d; }
.meta-tag.type-video  { background: rgba(244,63,94,0.15); color: #fda4af; }
.meta-tag.type-audio  { background: rgba(34,197,94,0.15);  color: #86efac; }
.meta-tag.type-code   { background: rgba(168,85,247,0.15); color: #c4b5fd; }
.meta-tag.type-reason { background: rgba(236,72,153,0.15); color: #f9a8d4; }
.meta-tag.type-free   { background: rgba(52,211,153,0.2);  color: #6ee7b7; border: 1px solid rgba(52,211,153,0.3); }
.meta-tag.type-open   { background: rgba(251,191,36,0.15); color: #fcd34d; border: 1px solid rgba(251,191,36,0.3); }

/* ===== BAR CHART ===== */
.chart-container {
  max-width: 900px;
  margin: 0 auto;
}

.chart-row {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  gap: 12px;
}

.chart-label {
  width: 180px;
  text-align: right;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  flex-shrink: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chart-bar-wrap {
  flex: 1;
  height: 28px;
  background: rgba(124,58,237,0.1);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.chart-bar {
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--purple-main), var(--purple-glow));
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--white);
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
  min-width: fit-content;
}

.chart-bar.top-model {
  background: linear-gradient(90deg, #b8860b, var(--gold), #f59e0b);
  color: var(--purple-deep);
}

.chart-value {
  width: 90px;
  text-align: left;
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* ===== FOOTER ===== */
.footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid rgba(124,58,237,0.15);
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--purple-deep); }
::-webkit-scrollbar-thumb {
  background: var(--purple-mid);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--purple-main); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero { padding: 60px 16px 40px; }
  .hero-icon { font-size: 48px; }
  .hero-stats { gap: 16px; }
  .stat-box { padding: 14px 20px; min-width: 130px; }
  .stat-number { font-size: 1.6rem; }
  .top3-grid { grid-template-columns: 1fr; }
  .models-grid { grid-template-columns: 1fr; }
  .chart-label { width: 100px; font-size: 0.75rem; }
  .section { padding: 40px 16px; }
}